System Building: Transformations (The Pressure Cooker)

After partaking in a Demon Hunters roundtable discussion last month (or was it the month before? Time is weird right now) one of the points that I’ve been pondering is how to model transformations more deeply in the system. Part of the complexity is that transformation covers a wide range of possibilities. From an at-will shapeshifter like DS9s Odo to a traditional, only at the full moon werewolf.

Rather than try and cover all of the options in a single post (or with a single rule) I’ve focused initially on what one of the attendees termed the Pressure Cooker, a transformation type where you have to build up a meter before you can transform into a powerful but focused alternate form. The Hulk would be a clear example, with Bruce Banner having a Rage track that must fill to a certain point before he can transform into the Hulk. Once transformed his ability to do anything more than smash things is severely curtailed.

I had initially intended to present these rules with an associated, rotating character sheet but that is taking longer to put together than I had anticipated (I decided to use it as a challenge to learn how to use Affinity Designer) so instead here is the current rules draft:

When you take harm you may redirect up to 5 hits to your Rage track – tick off 1 box per hit. If the track crosses the first boundary marker you may transform with a successful roll of Forceful + Fringe (werecreature), difficulty 10. If it crosses the secondary boundary marker you transform automatically and against your will.

After transforming rotate your character sheet 180 degrees.

While transformed you may only take actions actions that align with your reduced Approach + Discipline list. All other rolls are at 2d4 or impossible. While transformed you have 3 approaches rated at d10, d8 and d8 and 2 disciplines rated at d10 and d8. You may raise 2 of these by +d6 to represent the supernatural enhancements of your alternate form.

While in your Rage form you clear 2 boxes per turn (DM discretion out of combat). You may extend your rage by passing Demon Dice to the DM – tick off 1 rage box per die, up to a maximum of 3 per turn. Allies and antagonists may extend/shorten your Rage by invoking relative aspects – for each Faith/Demon die spent fill or clear a Rage box. Example aspects which could be invoked may include Scathing insult or Tranquiliser serum.

You may attempt to return to human form only after your Rage drops below the willing transformation boundary. Roll Forceful + Fringe from your human form, with a transformation difficulty equal to the number of filled Rage boxes. If the number of filled Rage boxes ever drops to 0 you automatically transform back.

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